311321010312 has 96 divisors (see below), whose sum is σ = 908511065280. Its totient is φ = 95739235200.

The previous prime is 311321010269. The next prime is 311321010317. The reversal of 311321010312 is 213010123113.

311321010312 is a `hidden beast` number, since 31 + 1 + 321 + 0 + 1 + 0 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (311321010317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1658437 + ... + 1836587.

It is an arithmetic number, because the mean of its divisors is an integer number (9463656930).

Almost surely, 2^311321010312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 311321010312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (454255532640).

311321010312 is an abundant number, since it is smaller than the sum of its proper divisors (597190054968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311321010312 is a wasteful number, since it uses less digits than its factorization.

311321010312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180043 (or 180036 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 311321010312 its reverse (213010123113), we get a palindrome (524331133425).

The spelling of 311321010312 in words is "three hundred eleven billion, three hundred twenty-one million, ten thousand, three hundred twelve".